Home / 66,760.26-100,137.78-16,839.69

Finding the Fourth Proportional to 66,760.26, 100,137.78 and 16,839.69

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Solution

The fourth proportional to 66,760.26, 100,137.78 and 16,839.69 is: 25,258.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,760.26 : 100,137.78 = 16,839.69 : x
  2. Step 2: Convert to fraction form
    66,760.26/100,137.78 = 16,839.69/x
  3. Step 3: Cross multiply
    66,760.26x = 100,137.78 × 16,839.69
  4. Step 4: Simplify right side
    66,760.26x = 1,686,289,172.49
  5. Step 5: Solve for x
    x = 1,686,289,172.49/66,760.26
  6. Step 6: Final answer
    x = 25,258.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.